CN102799706A - Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects - Google Patents
Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects Download PDFInfo
- Publication number
- CN102799706A CN102799706A CN2012101825888A CN201210182588A CN102799706A CN 102799706 A CN102799706 A CN 102799706A CN 2012101825888 A CN2012101825888 A CN 2012101825888A CN 201210182588 A CN201210182588 A CN 201210182588A CN 102799706 A CN102799706 A CN 102799706A
- Authority
- CN
- China
- Prior art keywords
- intercept
- area
- buildings
- building
- scope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/10—Devices for predicting weather conditions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/16—Measuring atmospheric potential differences, e.g. due to electrical charges in clouds
Landscapes
- Environmental & Geological Engineering (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention relates to a method for building a mathematics model from a qualitative angle to calculate lightning frequency interception area of construction and building, and is suitable for performing lightning risk assessment, design of lightning protection device, acceptance inspection and detection in relevant units, such as thunder and lightning industry architecture design institutes, and weather bureau lightning protection centers, lightning protection enterprises, lightning protection offices and the like in each province of the whole country. The problem that the lightning frequency interception area of construction and building is calculated under the consideration of surrounding objects is mainly solved. The method comprises the following steps of: respectively building a virtual interception body of the building and other interception bodies in a three-dimensional spaces; distributing the overlapped interception area S according to the overlapped volume V1 of the building and other overlapped volumes V2; and acquiring the area S1 of the part which belongs to the building and the particular interception area S0 of the building, namely, the interception area of the building under the consideration of surrounding objects.
Description
Technical field
Patent of the present invention be around a kind of consideration during object (this object can be buildings, structures or other any facility that the fixed position is arranged or device that is above the ground level) the quantitative Analysis buildings (comprise structures; For for simplicity; Below all be referred to as buildings) thunderbolt number of times intercept Method for Area; Be applicable to the lightning protection industry, can supply construction work designing institute, weather bureau of autonomous regions and municipalities lightning protection center, lightning protection company, lightning protection relevant unit such as to do buildings be struck by lightning design, examination and the testing of risk assessment, thunderstorm electricity protective device.
Background technology
Thunder and lightning is a kind of common disaster that threatens buildings and personal safety; In the examination of design of risk assessment that buildings is struck by lightning, lightning protection and lightning protection device and when detecting; All need calculate the year of buildings and estimate the number of times that is struck by lightning, so that it is carried out rational lightning protection classification.According to the regulation of the State Standard of the People's Republic of China GB50057-2010 " Code for design of lightning protection of buildings " (hereinafter to be referred as GB50057) that came into effect on October 1st, 2011, its computing formula is following:
N=k * Ng * Ae(formula 1)
In formula 1,
NIt is the number of times (unit: inferior/year) that is struck by lightning of estimating in year of buildings;
kBe correction coefficient, get 1 generally speaking, no numerical value unit;
NgBe the annual density of buildings their location thunderbolt the earth, unit: inferior/square kilometre/year, general thunderstorm days conversion according to the locality (according to GB50057, reduction formula is:
Ng=0.1 *
Td, wherein
TdBe local annual thunderstorm days) or get according to the detection data of the lightning positioning system of locality;
AeBe the equivalent area (hereinafter to be referred as the intercept area) of the scope (hereinafter to be referred as the intercept scope) of identical thunderbolt number of times with the buildings intercept on the ground, unit: square kilometre.
On the whole,
kWith
NgThese two parameters confirm to have only than being easier to
AeThe computation process more complicated.GB50057 is regulation in " estimating the thunderbolt number of times appendix A buildings year ": the equivalent area of identical thunderbolt number of times with the buildings intercept should be the area behind long-pending outside expansion the in its physical plane; Buildings for the rectangular parallelepiped form; The planimetric map of its intercept scope on the ground is shown in accompanying drawing 1; Being one four jiaos is the rectangle of fillet, and the length of this round rectangle does
L+2D, width does
W+2D, the radius of four fillets does
D, its intercept area calculates by following formula:
Ae=[L*
W+2 (L+W)*
D+π D 2 ]* 10
-6(formula 2)
In the formula 2:
L, W, D-be respectively length, width and the expansion width (unit: rice) of rectangular parallelepiped buildings;
The expansion width of so-called buildings
D, be to the distance at the edge of the corresponding side of its intercept scope, with the height of buildings from the edge of buildings
H(unit: rice) become; Height when buildings
HDuring less than 100 meters, obtain by following formula
D:
D=[H*
(200-H)] 1/2(formula 3)
Height when buildings
HWhen being equal to or greater than 100 meters, obtain by following formula
D:
D=H(formula 4)
It more than is the regulation among the GB50057.Different to the definition that enlarges width and intercept area in different standards or standard; Such as GB21714.2-2008 " lightning protection part 2: risk management " though in the regulation buildings height what are; Expansion width all value is three times of height, promptly obtains by following formula
D:
D=3H(formula 5)
Corresponding with it, the intercept area is represented with Ad in GB21714.
The different definition that enlarges width and intercept area does not influence the independence and the integrality of patent of the present invention.Which standard or the standard of don't work calculated the intercept area of buildings, and the ultimate principle of patent of the present invention all is the same, only need apply mechanically it and enlarge width
DRespective formula get final product.
In sum, the buildings of rectangular parallelepiped form calculates the intercept area according to formula 2, and the planimetric map of its intercept scope is shown in accompanying drawing 1.GB50057 stipulates simultaneously, " when the height at each position of buildings not simultaneously, should calculate the maximum width that enlarges along the pointwise of buildings periphery, its equivalent area should be by every maximum area that connecting line surrounded that enlarges the width outer end ".Therefore,, then can obtain the form of this intercept scope in three-dimensional space, be depicted as the sectional view of the intercept scope of rectangular parallelepiped buildings like accompanying drawing 2 if the periphery of buildings end face and the periphery of its intercept scope are coupled together.
What more than introduce is the computing method of the intercept area of the periphery isolated buildings that do not have other object; But buildings individualism seldom in fact; Buildings highly dense especially in the modern city; Its intercept area of these adjacent buildingss can influence each other; GB50057 has stipulated when the buildings periphery has other buildings in its " appendix A buildings year estimate thunderbolt number of times " simultaneously for this reason, the computing method that the intercept area of this solitary building is revised, such as the 3rd regulation wherein: " when the height of buildings less than 100m; when its periphery has than its other high buildings in the 2D scope simultaneously ... the equivalent area of calculating can deduct D * (these buildingss and the parallel length summation in rice of institute's consideration buildings length of side) * 10
-6(km
2) "; the 5th regulation: " when the height of buildings is equal to or greater than 100m; Simultaneously its periphery has the height of grade or than its other low buildings in the 2H scope; And not definite buildings when equaling in the protection domain of depth of building (m) with ball radius ... The equivalent area of calculating can deduct (H/2) * (these buildingss with the parallel length summation in rice of definite buildings length of side) * 10
-6(km
2) ", or the like.
Though GB50057 has provided these computing method; But its definition is clear and definite inadequately; Stipulate detailed inadequately; Such as: wherein stipulate, how do " when these buildingss are not in the protection domain of institute's consideration buildings ... " judge that a solitary building is positioned at the protection domain of another solitary building? If the part of this buildings is positioned at the protection domain of institute's consideration buildings; How does this calculate? For another example; Again and again a calculating parameter of mentioning among the GB50057 is " these buildingss with the parallel length in rice of definite buildings length of side ", but if circular or with institute's consideration buildings and uneven buildings, how this calculates? GB50057 does not make clear and definite definition or regulation to these situation.
Simultaneously; The computing method that GB50057 provides are insufficient to the consideration of various complex situations; Such as: wherein have only " waiting height or lower " and " than its height " two options than it for this solitary building and other buildings difference in height; Though how much high, all be same option ' than its height ', and resulting result of calculation is all the same; For the last difference of distance between this solitary building and other buildings, have only " in the 2D scope " or " in the 2H scope " two options, as long as in this scope, no matter distance is how far, result of calculation is also all the same.So highly identical result of calculation obviously can't reflect different buildingss varying on height and distance each other.
And the computing method that GB50057 provides need artificial judgment to a great extent and choose different clauses, formula and relevant parameters, and under many, the complex-shaped situation of buildings quantity, probability of errors is very big.
Generally speaking, the computing method that GB50057 provides are from angle consideration qualitatively, are unfavorable for setting up mathematical model, and operation easier is big, and error probability is high, and it is poor to calculate precision, in fact can't satisfy the demand of routine work under the actual conditions.
In this case, high of heap of stone through research, proposed a kind ofly to calculate buildings thunderbolt number of times intercept Method for Area during object around considering scientifically and rationally.This method is considered from quantitative angle, is convenient to set up mathematical model and calculates, and develops software according to this method; The user only need accomplish measurement and the modeling work to this solitary building and its peripheral object; All the other evaluation works all can be accomplished by software automatically, and are easy to use, and calculate accurately.
Summary of the invention
Buildings is individualism seldom; More or less have other buildings or structures near most buildingss; Intercept scope separately each other can overlapping to some extent (use the notion in the mathematics, its intercept scope has common factor each other), therefore when calculating the intercept area of a certain seat buildings (below be referred to as this solitary building); If do not consider other buildings of its periphery, its result of calculation is unscientific beyond doubt.So, during object, how does this calculate the thunderbolt number of times intercept area of this solitary building around considering?
Visible from accompanying drawing 2; The intercept scope of buildings is the scope that connecting line surrounded that the peripheral each point of buildings end face is outwards emitted the outermost end that enlarges width; Therefore, can consider that object is to the influence of the thunderbolt number of times intercept area of this solitary building on every side from the angle of 3 D stereo.
Specifically, for this solitary building, (be referred to as this point, it highly is made as with the each point on the peripheral sideline of its end face (end face possibly be surface level or slope, and a buildings has a plurality of end faces)
H) according to separately expansion width
D(
DDepend on
H, specifically being defined in different standards or the standard maybe be different) and ground around it throws, and can obtain the projected area of the circle separately that each this point rest on the ground.This adjacent point, maybe overlapping to some extent (there be common factor its projected area).
In like manner, also can be with each bar sideline of end face periphery according to separately expansion width
DThrow on ground around it, and its essence integrates the projected area of each this point on the sideline exactly, obtains the projected area in this sideline.The so-called integration is meant; If certain a bit is positioned at the projected area of any one this point on this edge line on the ground; Just think that this point is positioned at the projected area in this sideline; Obtain the projected area (use the notion of mathematics, the projected area in sideline is appreciated that the union into the projected area of its each this point) of this edge line in view of the above.If this edge line is a level, then the shape of its projected area on the ground is similar to capsule, shown in accompanying drawing 3.
In like manner also can be with whole top according to separately expansion width
DAround it, throw, its essence integrates the projected area and the end face vertical projection on the ground itself in each bar sideline on the end face exactly, and the concrete form of resulting projected area becomes with height with the shape of end face.
The independent projected area of each end face of this solitary building is integrated; Resulting whole projected area is exactly this solitary building intercept scope on the ground; Be referred to as this intercept scope, its area is exactly the intercept area of this solitary building, is referred to as this intercept area.
In three-dimensional space, on the ground intercept scope of each end face of this solitary building, buildings, the line segment that throws to the intercept scope from end face the common space body of forming, be referred to as this intercept body.
Specifically; (be each end face of this solitary building, possibly be level to this intercept body, also possibly tilt by end face; Or even it is vertical; Such as the roof external wall that couples together of two-layer roof up and down), bottom surface (being this solitary building intercept scope on the ground) and side (side combines by being positioned at the outermost incident line, and the periphery of end face and the periphery of bottom surface are coupled together) surround and form, its side is generally formed by circular conical surface and two kinds of form familiess of slope.Such as, for columniform buildings, the end face of its space intercept body is a circle, and the bottom surface also is a circle, and its border, side is the circular conical surface of 360 degree corners, and whole form is the cone of a tack, shown in accompanying drawing 4; For the rectangular parallelepiped buildings; The end face of its space intercept body is a rectangle; Its bottom surface is the round rectangle shown in the accompanying drawing 1; Its side is common composition of circular conical surface (summit of four circular conical surfaces corresponds respectively to four summits of rectangle) of four slopes (top of four slopes is respectively two long limits and two minor faces of rectangle) and four 90 degree corners, and whole form is similar to abutment.
Treatment principle about the side is: the side always is positioned at outermost and upside.The implication of the words is; If each side and the end face of space intercept body have interlaced situation; The side that then is positioned at outermost and upside is the side of whole space intercept body, and the side that is positioned at inboard and downside is then wrapped into the inside of space intercept body, no longer becomes the side.If certain end face of buildings is very big inclined-plane, angle of inclination; Perhaps certain end face is in lower position (such as the roof of the annex of skyscraper) in whole buildings; Then the whole or part of this end face also might be wrapped into the inside of space intercept body, no longer becomes end face.
It more than is the process of setting up this intercept body according to this solitary building.
According to above-mentioned method, can all handle like this each other buildings that is positioned at this solitary building periphery, obtain space intercept body separately.The buildings that distance is far away, if the intercept scope of its intercept scope on the ground and this solitary building does not have overlapping (not occuring simultaneously), then it can not considered the not influence of intercept area of this solitary building.Therefore, so-called here other buildings, just those influential buildingss of intercept area to this solitary building.More than one of the quantity possibility of other buildings is distributed in this solitary building periphery all directions.
To enlarging width
DDifferent definition can have influence on the quantity of other buildings.Undoubtedly, when adopting formula 5 definition to enlarge width, the quantity of other buildings can be when adopting the definition of formula 4.
After having confirmed other buildings; The independent space intercept body of each other buildings is incorporated into together; Its integral body (being appreciated that the union for each space intercept body) is referred to as other intercept body; Its intercept scope is referred to as other intercept scope, and its intercept area is referred to as other intercept area.Here the meaning of integrating is: if certain a bit is positioned at the wherein space intercept body scope of any one other buildings in the space, just think that this spatial point belongs to other intercept body, obtains other intercept body thus.Because the quantity of other buildings maybe be more than one and possibly be positioned at all directions of this solitary building,, even possibly on form, be divided into also disjunct each other different piece so the form of other intercept body maybe more complicated.But it is the same with this intercept body; Other intercept body also is to be surrounded by end face, bottom surface and side to form; Its side is generally combined by circular conical surface and slope, and its side or end face have interlaced situation, is positioned at the side of the whole space intercept of becoming of outermost and upside body this moment.
This intercept body and other intercept body have more than been obtained.Calculate the intercept area of this solitary building below in view of the above.
Accompanying drawing 5 is floor map of the intercept scope of two adjacent buildings, and wherein, A is this solitary building, and B is other buildings, and the intercept scope of these two buildingss is overlapping to some extent, and the shadow region among the figure is the common factor of this intercept scope and other intercept scope.Therefore, the intercept scope of this solitary building can be divided into two parts, and it is overlapping that a part is that this solitary building intercept scope exclusive and other buildings does not have, and the area of this part is designated as S0; The intercept scope overlaid of another part and other buildings is called overlapping intercept scope, and the area of this part is designated as S.Relevant knowledge according to plane geometry and infinitesimal analysis can obtain S0 and S through calculating.
In some cases, S0 or S possibly be 0.Such as, if this solitary building is very short and small, other buildings is very tall and big, and close between the two, and this moment, this intercept scope was positioned at (for its subclass) within other intercept scope fully, and then S0 is 0; If this solitary building periphery does not have other buildings, this moment, this intercept scope was not occured simultaneously with other intercept scope, and then S is 0.Even still can use in these cases, the computing method of this patent.
Overlapping intercept scope is common by this solitary building and other buildings, if so S greater than 0, its area can be divided into two parts, wherein a part is returned this solitary building, is designated as S1; Another part is returned other buildings, is designated as S2.
Shown in accompanying drawing 5, S=S1+S2, therefore, key of problem is to calculate the area size of S1.
There are two kinds of methods can calculate S1, introduce as follows respectively:
Method one is referred to as the volume quantitative method.
Peripheral loop wire with overlapping intercept scope cuts this intercept body and other intercept body straight up respectively; Shown in accompanying drawing 6; Can obtain the part that these two intercept bodies are positioned at overlapping intercept scope separately, its volume is called this overlapping volume V1 and other overlapping volume V2 respectively.Relevant knowledge according to solid geometry and infinitesimal analysis is big or small through calculating the volume that can obtain V1 and V2.Can obtain S1 according to V1, V2 and S, concrete formula is following:
S1＝?S×V1/（V1＋V2）
The volume quantitative forensic science is reasonable, is the method for our keypoint recommendation.But this method has a bit slight deficiency: owing to calculate S1 with quantitative methods, so can't clearly divide the separatrix between this intercept scope and other intercept scope.Therefore, can use following method as replenishing.
Method two is referred to as the height qualitative method.
If this intercept body has lap (common factor is arranged) with other intercept body; Between them, can draw a separatrix; Be referred to as intercept scope separatrix, its both sides are referred to as this side and other side respectively, and this side is near this solitary building; Other side is near other buildings, shown in accompanying drawing 7; In fact, if this intercept scope is not occured simultaneously with other intercept scope, then this separatrix can be a tangible dividing strip, and the height of position, any point intercept body all is 0 in dividing strip.
The marginal definition of intercept scope is: a marginal side, on the position, any point, this intercept body all is not less than the height of other intercept body at this point at the height of this point; In marginal other side, on the position, any point, other intercept body all is not less than the height of this intercept body at this point at the height of this point; Position, any point on the separatrix, this intercept body is identical at the height of this point with other intercept body.Definition in view of the above, this separatrix possibly be straight line, curve or other form.Overlapping intercept scope is divided into two parts by this separatrix, and that part of area that is positioned at this side is S1, and that part of area that is positioned at other side is S2, shown in accompanying drawing 7.
According to above definition, can draw out this separatrix, and calculate S1 and S2.Concrete grammar is that overlapping intercept scope is divided into grid one by one according to certain yardstick, calculates this intercept body and height h1 and the h2 of other intercept body on each grid node respectively.The discrepancy in elevation according to h1 and h2 is different, handles as follows respectively:
If h1 is higher than h2, then this node location is positioned at a marginal side, and this grid area is counted S1;
If h1 is lower than h2, then this node location is positioned at marginal other side, and this grid area is counted S2;
If h1 is identical with h2 or basic identical, then this point is exactly the point on the intercept scope separatrix, and this point-rendering is come out;
After successively each grid node being handled like this, obtain the final aggregate-value of S1 and S2 at last; And, the point on the separatrix is drawn out successively, what form at last is exactly intercept scope separatrix.
In the ordinary course of things, identical with the result of calculation of height qualitative method with the volume quantitative method, and also highly qualitative method can clearly be divided the separatrix between this intercept scope and other intercept scope, is convenient to the concrete intercept scope to user's exhibition building thing.But the height qualitative method has problems in some cases, such as: if the two solitary building discrepancy in elevation are very big; Close, the intercept scope of short building is the subclass of the intercept scope of high building, shown in accompanying drawing 8; Intercept this moment scope separatrix does not exist, and can't use the height qualitative method; Perhaps, though intercept scope separatrix exists, this side is positioned at marginal the same side with other side, and shown in accompanying drawing 9, error calculated at this moment is bigger.Therefore we do not recommend to make in this way, only if need to draw the separatrix between this intercept scope and other intercept scope, and are guaranteeing under the correct prerequisite of result of calculation.
Through two kinds of above-mentioned methods (volume quantitative method or height qualitative method), can obtain S1.At last, S0 being added S1, is exactly the lightning number of times intercept area of buildings during object around considering.
More than be exactly the main contents of patent of the present invention.
Description of drawings:
Rectangle in the middle of Fig. 1 is positioned at is a rectangular parallelepiped buildings projection on the ground, and its length and width height is respectively L, W, H; The round rectangle of rectangle outside is the floor map of rectangular parallelepiped buildings intercept scope on the ground, and its length is L+2D, and width is W+2D, and the radius of four fillets is D; D is the expansion width that draws according to H; Notice that whole round rectangle is inner, comprises buildings rectangular projection region on the ground itself, all belongs to the intercept scope
Fig. 2 is the sectional view of the intercept scope of rectangular parallelepiped buildings, and the length of buildings is L, highly is H, throws from the ground laterally, edge of its roof top, and the expansion width of projection is D, so the length of intercept scope is L+2D;
Fig. 3 is the floor map of the projected area on the ground, sideline of a level, and its shape is to be similar to the such round end rectangle of capsule;
Fig. 4 is the solid shape of the space intercept body of a cylindrical construction thing, and its inner right cylinder is a buildings itself, and outside tack cone is its space intercept body;
Fig. 5 is the floor map of two adjacent buildingss intercept scope on the ground; Wherein A is this solitary building; B is other buildings; S0 be this solitary building the area of exclusive intercept scope, the shadow region among the figure is the overlapping intercept scope (common factor part) of two solitary buildings, its area is S; S is made up of S1 and S2, and S1 and S2 are respectively this solitary building and other buildings occupy part separately in overlapping intercept scope areas;
Fig. 6 is a diagrammatic cross-section of calculating the S1 and the S2 of two adjacent buildings according to the volume quantitative method; The space intercept body of this two solitary building is overlapping to some extent; Peripheral loop wire with overlapping intercept scope upwards cuts this intercept body and other intercept body respectively, can obtain V1 and V2; Calculate S1 and S2 according to the ratio of V1 and V2
Fig. 7 is a floor map of calculating the S1 and the S2 of two adjacent buildings according to the height qualitative method, and wherein A is this solitary building, and B is other buildings, and its overlapping intercept scope is divided into two parts by the separatrix, and its area is respectively S1 and S2; Whole intercept scope is divided into this side and other side by the separatrix, and in this side, this intercept body is not less than other intercept body on the position, any point; In other side, other intercept body is not less than this intercept body on the position, any point; On the separatrix, this intercept body and other height such as intercept body grade; The separatrix possibly be straight line or curve
Fig. 8 is the imponderable a kind of situation of height qualitative method; A building among the figure is higher; The B building is shorter, and both close together, the intercept scope of B building are positioned at the intercept scope of A building fully with (becoming its subclass); Do not exist intercept scope separatrix this moment, just can't use the height qualitative method to calculate the intercept area yet
Fig. 9 is the bigger a kind of situation of the height qualitative method error of calculation, though there is intercept scope separatrix to exist among the figure, this side is positioned at marginal the same side with other side, and this moment, height qualitative method error calculated was bigger
Figure 10 is the diagrammatic cross-section that certain grid node is operated; This solitary building is positioned at the picture left side among the figure; Other buildings is positioned at the picture right side; H1 and h2 are respectively this intercept body and the height of other intercept body at this grid node place, according to the ratio of h1 and h2 the area that this point belongs to grid are distributed
Embodiment:
The form of space intercept body generally is a more complicated, will obtain accurately with the mode of hand computation that S0, S, V1 and V2 are unlikely, therefore preferably calculates with computer programming.Though principle is identical, the mode of concrete programming and flow process be maybe be with everyone custom different to have various ways, has listed wherein a kind of the most simply embodiment below, is made up of following steps:
Step 1: other buildings to this solitary building and periphery thereof is measured, and obtains relevant informations such as its orientation, form, size, height, imports computing machine with the mode of modeling in program; Do not belong to other buildings if know which buildings, then with periphery buildings input as much as possible, the zone is more extensively good more;
Step 2: the whole zone that will be comprised owned building intercept scope by computer program is divided into grid one by one according to certain yardstick; Calculate this intercept body and other intercept body height on each grid node respectively, be kept in the Multidimensional numerical; This array has three dimensions at least, and wherein two dimensions are used to represent planimetric coordinates, also has the height of a dimension representation space intercept body on coordinate points; Grid dividing must be fine and closely woven more, and the quantity of grid is just many more, and the scale of array is just big more, and result of calculation is also just accurate more, and it is also just long more to calculate the needed time;
Step 3: by computer program each grid node in the whole zone is scanned, obtain this intercept body and put locational height h1 and h2 at this respectively, shown in accompanying drawing 10 with other intercept body; Whether the height according to h1 is 0, is divided into following two kinds of situation and handles:
If h1 is 0, do not do any processing;
If h1 is greater than 0, the h1/ (h1+h2) of this grid area is added up into the intercept area of this solitary building, such as: suppose h1=3 rice, h2=7 rice, then 30% (promptly 3/10) with this grid area adds; If h2=0 then adds 100% of this grid area;
Step 4: the area to each grid in the whole zone is all handled like this, the accumulated value that obtains at last, the thunderbolt number of times intercept area of this solitary building when being object around considering.
Claims (10)
1. thunderbolt number of times intercept Method for Area of quantize calculating buildings (or structures); Comprise to this solitary building and on every side object (buildings or structures) measure the process with modeling; Characteristic is in three-dimensional space, to set up this virtual intercept body and other intercept body; Ratio according to this overlapping volume V1 and other overlapping volume V2 is distributed overlapping intercept area S; Obtain that part of area S1 that belongs to this solitary building in the overlapping intercept area, add this solitary building exclusive intercept area S0, the intercept area of this solitary building when being object around considering.
2. the described method of claim 1; It is characterized in that institute around this solitary building might be set up space intercept body respectively and is incorporated into together influential other object of its intercept area, other intercept body that obtains is at last done as a whole (i.e. the union of the space intercept body of all other objects) participates in the calculating to the intercept area of this solitary building.
3. the described method of claim 1; This intercept body that it is characterized in that being set up is surrounded by end face, bottom surface and side with other intercept body and forms; Its end face is the end face of buildings; The bottom surface is a buildings intercept scope on the ground, and the side is connected the end face periphery with bottom periphery, formed by circular conical surface and two kinds of form familiess of slope; The side is taking place when staggered each other or with end face, and with the face that is positioned at outermost or the upside side as whole space intercept body, the face that is positioned at inboard or downside is wrapped into space intercept body inside, no longer as side or end face.
4. the described method of claim 1 is characterized in that the overlapping intercept area S of this solitary building and other buildings is distributed, and is wherein belonged to that part of area S1 of this solitary building; Concrete grammar is straight up this intercept body and other intercept body to be cut with the peripheral loop wire of overlapping intercept scope, obtains this overlapping volume V1 and other overlapping volume V2 respectively, obtains S1 in view of the above, and formula is: S1=S * V1/ (V1+V2).
5. the described method of claim 1; It is characterized in that this intercept body of being set up or other intercept body are preserved and calculated with the form of Multidimensional numerical; Concrete grammar is that the whole zone that comprises owned building intercept scope is divided into grid one by one according to certain yardstick; Calculate this intercept body and other intercept body height on each grid node respectively, be kept in the Multidimensional numerical; This array has three dimensions at least, and wherein two dimensions are used to represent planimetric coordinates, also has the height of a dimension representation space intercept body on coordinate points.
6. the described method of claim 1; It is characterized in that the plane domain that will comprise whole intercept scopes is divided into grid one by one; The big I of size of mesh opening changes within the specific limits; Relevant information according to height h1 with this node location of h2 judgement of this intercept body on each grid node position and other intercept body: if h1=0 on this node location, h2=0, then this point does not belong to any intercept scope; If h1>0, h2=0, then this point is positioned at and only is positioned at this intercept scope; If h1=0, h2>0, then this point is positioned at and only is positioned at other intercept scope; If h1>0, h2>0, then this point is positioned at the overlapping intercept scope of this solitary building and other buildings; If h1 and h2 equate or are equal basically that then this point is positioned on the separatrix of this intercept scope and other intercept scope.
7. the described method of claim 1; It is characterized in that the overlapping intercept scope division of this solitary building and other buildings is grid one by one; The big I of size of mesh opening changes within the specific limits; Calculate this intercept body and other intercept body height h1 and h2 on each grid node respectively, if h1 greater than 0, incorporates h1/ (h1+h2) part of this grid area into this solitary building; To all operations like this of each grid, the aggregate-value that obtains at last is the part S1 that belongs to this solitary building in the overlapping intercept scope.
8. the described method of claim 1; It is characterized in that the plane domain that will comprise whole intercept scopes is divided into grid one by one; The big I of size of mesh opening changes within the specific limits, calculates this intercept body and other intercept body respectively at locational height h1 of each grid node and h2; If h1 is 0, then skips, otherwise h1/ (h1+h2) part of this grid area is added up into the intercept area of this solitary building; To all operations like this of each grid, the thunderbolt number of times intercept area of this solitary building during object around the aggregate-value that obtains at last is and considers.
9. a method according to claim 1 is calculated some solitary buildings intercept Method for Area separately in certain zone, it is characterized in that specifies wherein a certain solitary building is this solitary building at every turn, calculates its consideration intercept area during object on every side; Each building in the zone is operated successively, obtains the intercept area of each solitary building at last.
10. the thunderbolt number of times intercept Method for Area of a calculating buildings (or structures); Comprise to this solitary building and on every side object (buildings or structures) measure the process with modeling; Characteristic is in three-dimensional space, to set up this virtual intercept body and other intercept body; The whole zone at whole intercept scopes place is divided into grid one by one according to certain yardstick; Calculate this intercept body and height h1 and the h2 of other intercept body on each grid node respectively, different according to the discrepancy in elevation of h1 and h2, handle respectively:
If h1 is higher than h2, then this grid area is counted the intercept area of this solitary building;
If h1 is lower than h2, do not do operation;
If h1 is identical with h2 or basic identical, then this point is exactly the point on the intercept scope separatrix, and this point-rendering is come out;
After successively each grid node being handled like this, the final aggregate-value that obtains at last is the intercept area of this solitary building; And, can the point on the separatrix be drawn out successively, form intercept scope separatrix at last.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210182588.8A CN102799706B (en) | 2011-12-26 | 2012-06-04 | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects |
| PCT/CN2013/075412 WO2013181981A1 (en) | 2012-06-04 | 2013-05-09 | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects |
| US14/405,058 US20150177414A1 (en) | 2011-12-26 | 2013-05-09 | Method for calculating lightning stroke frequency interception area of structure and building under consideration of surrounding objects |
| EP13800212.6A EP2857997A4 (en) | 2012-06-04 | 2013-05-09 | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects |
| BR112014030140A BR112014030140A2 (en) | 2012-06-04 | 2013-05-09 | method for the quantitative calculation of the lightning frequency interception area of a building (or structure); and method for calculating each ia of several buildings within a given region |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110439802 | 2011-12-26 | ||
| CN201110439802.9 | 2011-12-26 | ||
| CN201210182588.8A CN102799706B (en) | 2011-12-26 | 2012-06-04 | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102799706A true CN102799706A (en) | 2012-11-28 |
| CN102799706B CN102799706B (en) | 2014-10-15 |
Family
ID=47198816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210182588.8A Expired - Fee Related CN102799706B (en) | 2011-12-26 | 2012-06-04 | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20150177414A1 (en) |
| CN (1) | CN102799706B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013181981A1 (en) * | 2012-06-04 | 2013-12-12 | Gao Lei | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects |
| CN105760694A (en) * | 2016-03-10 | 2016-07-13 | 吉林建筑大学 | Method for calculating equivalent area for intercepting same number of lightning strokes of building |
| CN106327590A (en) * | 2016-08-22 | 2017-01-11 | 江苏国泰新点软件有限公司 | Method and device for determining overlapping area of three-dimensional combined model |
| CN104133936B (en) * | 2013-07-11 | 2019-04-12 | 深圳康雅生态环境有限公司 | The method for considering to calculate each position lightning strike probability of construction of structures when the object of periphery |
| CN111046475A (en) * | 2019-12-24 | 2020-04-21 | 广州市城市建设工程监理公司 | Method and device for calculating building area and storage medium |
| CN112070826A (en) * | 2020-08-31 | 2020-12-11 | 中铁大桥勘测设计院集团有限公司 | Method for calculating lightning protection equivalent area of building |
| CN113656743A (en) * | 2021-08-12 | 2021-11-16 | 贵州省建筑设计研究院有限责任公司 | Weather big data-based accurate calculation method for expected lightning strike geodetic times of building year |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109284918B (en) * | 2018-09-11 | 2021-01-05 | 中国科学院城市环境研究所 | Urban three-dimensional space compactness measuring method and system |
| CN110020477B (en) * | 2019-04-08 | 2023-01-24 | 浙江省水利河口研究院 | Tidal bore acting force calculation method for cylindrical structure |
| AT523070B1 (en) * | 2019-11-25 | 2021-05-15 | UBIMET GmbH | Method for monitoring lightning activity in a surveillance area |
| AT523069B1 (en) * | 2019-11-25 | 2021-05-15 | UBIMET GmbH | Method for monitoring lightning activity in a surveillance area |
| AT523068B1 (en) * | 2019-11-25 | 2021-05-15 | UBIMET GmbH | Method for monitoring lightning activity in a surveillance area |
| CN112966404B (en) * | 2021-01-16 | 2022-10-25 | 西安交通大学 | Method for generating three-dimensional lightning leader development path |
| CN113267667B (en) * | 2021-06-08 | 2022-03-15 | 武汉大学 | Three-dimensional lightning trip-out rate calculation method considering cross-crossing power transmission line shielding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1936880A (en) * | 2006-10-17 | 2007-03-28 | 国网武汉高压研究院 | Statistical method adopting lattice method to determine thunder and lightning parameters |
| CN101261616A (en) * | 2008-04-21 | 2008-09-10 | 国网武汉高压研究院 | Electric network thunderstorm damage distribution determination method |
| JP2008217541A (en) * | 2007-03-06 | 2008-09-18 | Tokyo Electric Power Co Inc:The | Calculator for calculating number of distribution line thunder accident, and calculation method of calculating number of distribution line thunder accident |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6407539B1 (en) * | 1999-11-10 | 2002-06-18 | The United States Of America As Represented By The Secretary Of The Army | Apparatus and method for determining lightning protection of a building |
| ES2224900B1 (en) * | 2004-10-25 | 2006-06-01 | Aplicaciones Tecnologicas, S.A. | DEVICE AND MEASUREMENT SYSTEM OF AN EXTERNAL ELECTRO-STATIC FIELD, AND SYSTEM AND METHOD OF STORM DETECTION. |
| US8275548B2 (en) * | 2009-08-17 | 2012-09-25 | Earth Networks, Inc. | Method and apparatus for detecting lightning activity |
-
2012
- 2012-06-04 CN CN201210182588.8A patent/CN102799706B/en not_active Expired - Fee Related
-
2013
- 2013-05-09 US US14/405,058 patent/US20150177414A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1936880A (en) * | 2006-10-17 | 2007-03-28 | 国网武汉高压研究院 | Statistical method adopting lattice method to determine thunder and lightning parameters |
| JP2008217541A (en) * | 2007-03-06 | 2008-09-18 | Tokyo Electric Power Co Inc:The | Calculator for calculating number of distribution line thunder accident, and calculation method of calculating number of distribution line thunder accident |
| CN101261616A (en) * | 2008-04-21 | 2008-09-10 | 国网武汉高压研究院 | Electric network thunderstorm damage distribution determination method |
Non-Patent Citations (4)
| Title |
|---|
| 任艳,等.: "雷击大地密度和等效截收面积计算方法", 《气象科技》 * |
| 扈海波,潘进军.: "基于空间网格技术的北京地区雷电灾害风险评估与区划", 《第28届中国气象学会年会》 * |
| 施广全,等.: "雷击灾害风险评估中等效截收面积计算方法研究", 《气象与环境科学》 * |
| 汝洪博,等.: "与建筑物截收相同雷击次数的等效面积计算方法的探讨", 《第八届长三角科技论坛——气象科技发展论坛》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013181981A1 (en) * | 2012-06-04 | 2013-12-12 | Gao Lei | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects |
| CN104133936B (en) * | 2013-07-11 | 2019-04-12 | 深圳康雅生态环境有限公司 | The method for considering to calculate each position lightning strike probability of construction of structures when the object of periphery |
| CN105760694A (en) * | 2016-03-10 | 2016-07-13 | 吉林建筑大学 | Method for calculating equivalent area for intercepting same number of lightning strokes of building |
| CN105760694B (en) * | 2016-03-10 | 2018-09-11 | 吉林建筑大学 | A kind of equivalent area computational methods of the identical number of lightning strokes of building intercept |
| CN106327590A (en) * | 2016-08-22 | 2017-01-11 | 江苏国泰新点软件有限公司 | Method and device for determining overlapping area of three-dimensional combined model |
| CN106327590B (en) * | 2016-08-22 | 2019-04-16 | 江苏国泰新点软件有限公司 | Stereo combined model overlapping area determines method and device |
| CN111046475A (en) * | 2019-12-24 | 2020-04-21 | 广州市城市建设工程监理公司 | Method and device for calculating building area and storage medium |
| CN112070826A (en) * | 2020-08-31 | 2020-12-11 | 中铁大桥勘测设计院集团有限公司 | Method for calculating lightning protection equivalent area of building |
| CN112070826B (en) * | 2020-08-31 | 2023-11-07 | 中铁大桥勘测设计院集团有限公司 | Calculation method of lightning protection equivalent area of building |
| CN113656743A (en) * | 2021-08-12 | 2021-11-16 | 贵州省建筑设计研究院有限责任公司 | Weather big data-based accurate calculation method for expected lightning strike geodetic times of building year |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150177414A1 (en) | 2015-06-25 |
| CN102799706B (en) | 2014-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102799706B (en) | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects | |
| Badenko et al. | Scan-to-BIM methodology adapted for different application | |
| Elberink et al. | Quality analysis on 3D building models reconstructed from airborne laser scanning data | |
| US9355495B2 (en) | Method and system for 3D modeling using feature detection | |
| CN103020342A (en) | Method for extracting contour and corner of building from ground LiDAR data | |
| CN101750030B (en) | Curved surface detecting system and method | |
| KR101167849B1 (en) | Method on Ranking Information Processing of Construction Cost Including Small Space or Element Information | |
| CN102506824A (en) | Method for generating digital orthophoto map (DOM) by urban low altitude unmanned aerial vehicle | |
| JP2015087300A (en) | Plant demolition plan support apparatus and plant demolition plan support method | |
| CN102353678B (en) | Method for measuring cultural relic diseases | |
| Dochev et al. | Calculating urban heat demands: An analysis of two modelling approaches and remote sensing for input data and validation | |
| CN112686836B (en) | Wall construction method and device | |
| CN104751479A (en) | Building extraction method and device based on TIN data | |
| CN104133936A (en) | Method for calculating lightning strike probability of each position of construction by considering surrounding objects | |
| CN114913146A (en) | Inclined point cloud plane precision calculation method and system based on house corner points | |
| EP2857997A1 (en) | Method for calculating lightning frequency interception area of construction and building under consideration of surrounding objects | |
| CN101975556A (en) | Method for measuring distortion of tall chimney based on outline | |
| CN113012289B (en) | Building indoor impression quality measuring method and system | |
| CN113469968B (en) | Method and device for detecting height difference of box seams of cigarette packaging box and electronic equipment | |
| US20240005257A1 (en) | Survey plan generation apparatus, survey plan generation method, and program | |
| CN117935626B (en) | Size-adaptive low-altitude airspace use conflict detection method and system | |
| Elberink et al. | Quality measures for building reconstruction from airborne laser scanner data | |
| JP7133821B1 (en) | Automatic measurement program, automatic measurement device and automatic measurement method by arbitrary coordinate system point cloud | |
| JP5771473B2 (en) | Temporal change prediction system, temporal change prediction method, and program | |
| JP3598240B2 (en) | Three-dimensional information measurement method and apparatus, and recording medium storing the method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20190604 |